A privacy solution that can only be useful in extreme cases and for a handful of people is unlikely to become a true infrastructure. Truly viable privacy protection must be aimed at the general public and accessible to ordinary users.

The key is finding the right balance: it should be easy to use in everyday situations, with no extra burden or complexity; when auditing, compliance, or on-chain verification are needed, it should not suddenly become a barrier. This is the ultimate goal of privacy design—protecting privacy while accommodating real-world needs. This is the value of practical privacy.